US2953952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for cleaning rolls
Assignee: Kaiser Aluminum and Chemical Corp
•
Filing: 1956-02-29
•
Granted: 1960-09-27
•
Expires: 1976-02-29
Abstract
No abstract record available.
Inventors
- 👤 George O Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:48
CPC Classifications
B; B21; B21B; B21B28/00; B21B28/02; B21B28/04; Y; Y10; Y10S; Y10S29/00; Y10S29/096; Y10S29/098
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2267380A
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US2391499A
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US2617320A
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US2680938A
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US2690765A
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US2673521A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |